﻿/************************************************************************

   Extended Silverlight Toolkit

   Copyright (C) 2010-2012 Xceed Software Inc.

   This program is provided to you under the terms of the Microsoft Public
   License (Ms-PL) as published at http://extendedsilverlight.codeplex.com/license

   Please purchase a commercial version of this toolkit if you are using
   it in a commercial product. The commercial versions support the project,
   and also include more features for each control, priority support,
   source code, updates, removed watermark, and a proprietary license.

   Visit http://xceed.com and follow @datagrid on Twitter.

  **********************************************************************/

using System;
using System.Net;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Documents;
using System.Windows.Ink;
using System.Windows.Input;
using System.Windows.Media;
using System.Windows.Media.Animation;
using System.Windows.Shapes;

namespace Xceed.Silverlight.Data
{
  internal class ExpansionChangedEventArgs : EventArgs
  {
    internal ExpansionChangedEventArgs( ExpansionAction action, int expansionDepth )
    {
      if( action != ExpansionAction.CollapseAll && action != ExpansionAction.ExpandAll )
        throw new ArgumentException( "Only the CollapseAll and ExpandAll actions are supported by this constructor.", "action" );

      if( expansionDepth < 0 )
        throw new ArgumentOutOfRangeException( "expansionDepth", "expansionDepth must be greater than or equal to zero." );

      this.Action = action;
      this.Path = null;
      this.ExpansionDepth = expansionDepth;
    }

    internal ExpansionChangedEventArgs( ExpansionAction action, DataPath path )
    {
      if( action != ExpansionAction.Collapse && action != ExpansionAction.Expand )
        throw new ArgumentException( "Only the Collapse and Expand actions are supported by this constructor.", "action" );

      this.Action = action;
      this.Path = path;
      this.ExpansionDepth = -1;
    }

    public ExpansionAction Action
    {
      get;
      private set;
    }

    public DataPath Path
    {
      get;
      private set;
    }

    public int ExpansionDepth
    {
      get;
      private set;
    }

  }
}
